The [URL="http://www.washingtonpost.com/ac2/related/topic/Washington+Redskins?tid=informline"]Washington Redskins[/URL] signed wide receiver Anthony Mix, a college teammate of [URL="http://www.washingtonpost.com/ac2/related/topic/Jason+Campbell+%28Football%29?tid=informline"]quarterback Jason Campbell[/URL] at Auburn, off the [URL="http://www.washingtonpost.com/ac2/related/topic/New+York+Giants?tid=informline"]New York Giants[/URL]' practice squad yesterday and released reserve guard [URL="http://www.washingtonpost.com/ac2/related/topic/Rick+DeMulling?tid=informline"]Rick DeMulling[/URL]. At 6 feet 5 and 235 pounds, Mix gives the team a strapping receiver, and he is one of seven wideouts on the roster.